Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {5, 11, 3, 9, 7, 8} → ______
- Prime numbers in {15, 25, 27, 3, 9, 23} → ______
- Prime numbers in {11, 19, 7, 17, 29, 21} → ______
- Prime numbers in {9, 5, 23, 3, 15, 11} → ______
- Prime numbers in {23, 11, 3, 19, 21, 9} → ______
- Prime numbers in {5, 19, 29, 21, 27, 8} → ______
- Prime numbers in {5, 12, 7, 15, 29, 2} → ______
- Prime numbers in {19, 7, 15, 21, 12, 2} → ______
- Prime numbers in {9, 23, 13, 8, 5, 25} → ______
- Prime numbers in {7, 23, 9, 27, 15, 29} → ______
- Prime numbers in {23, 5, 8, 12, 7, 15} → ______
- Prime numbers in {25, 17, 15, 29, 11, 8} → ______
- Prime numbers in {9, 19, 23, 25, 5, 29} → ______
- Prime numbers in {15, 12, 7, 11, 19, 5} → ______
- Prime numbers in {21, 19, 3, 8, 5, 9} → ______
- Prime numbers in {12, 7, 29, 17, 9, 8} → ______
- Prime numbers in {13, 21, 27, 19, 9, 3} → ______
- Prime numbers in {15, 8, 23, 25, 5, 17} → ______
- Prime numbers in {5, 8, 19, 21, 29, 17} → ______
- Prime numbers in {29, 2, 13, 21, 27, 23} → ______